On-Surface Assembly of Hydrogen- and Halogen-Bonded Supramolecular Graphyne-Like Networks

Yang Z, Fromm L, Sander T, Gebhardt J, Schaub TA, Görling A, Kivala M, Maier S (2020)

Publication Type: Journal article

Publication year: 2020

Journal

DOI: 10.1002/anie.201916708

Abstract

Demonstrated here is a supramolecular approach to fabricate highly ordered monolayered hydrogen- and halogen-bonded graphyne-like two-dimensional (2D) materials from triethynyltriazine derivatives on Au(111) and Ag(111). The 2D networks are stabilized by N⋅⋅⋅H−C(sp) bonds and N⋅⋅⋅Br−C(sp) bonds to the triazine core. The structural properties and the binding energies of the supramolecular graphynes have been investigated by scanning tunneling microscopy in combination with density-functional theory calculations. It is revealed that the N⋅⋅⋅Br−C(sp) bonds lead to significantly stronger bonded networks compared to the hydrogen-bonded networks. A systematic analysis of the binding energies of triethynyltriazine and triethynylbenzene derivatives further demonstrates that the X3-synthon, which is commonly observed for bromobenzene derivatives, is weaker than the X6-synthon for our bromotriethynyl derivatives.

Authors with CRIS profile

Involved external institutions

Ruprecht-Karls-Universität Heidelberg Germany (DE)

How to cite

APA:

Yang, Z., Fromm, L., Sander, T., Gebhardt, J., Schaub, T.A., Görling, A.,... Maier, S. (2020). On-Surface Assembly of Hydrogen- and Halogen-Bonded Supramolecular Graphyne-Like Networks. Angewandte Chemie International Edition. https://doi.org/10.1002/anie.201916708

MLA:

Yang, Zechao, et al. "On-Surface Assembly of Hydrogen- and Halogen-Bonded Supramolecular Graphyne-Like Networks." Angewandte Chemie International Edition (2020).

BibTeX: Download